172856092480 has 56 divisors (see below), whose sum is σ = 435826146888. Its totient is φ = 65075232768.

The previous prime is 172856092433. The next prime is 172856092571. The reversal of 172856092480 is 84290658271.

It can be written as a sum of positive squares in 4 ways, for example, as 16249110784 + 156606981696 = 127472^2 + 395736^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15882069 + ... + 15892948.

Almost surely, 2^172856092480 is an apocalyptic number.

172856092480 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

172856092480 is an abundant number, since it is smaller than the sum of its proper divisors (262970054408).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

172856092480 is a wasteful number, since it uses less digits than its factorization.

172856092480 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31775051 (or 31775041 counting only the distinct ones).

The product of its (nonzero) digits is 1935360, while the sum is 52.

The spelling of 172856092480 in words is "one hundred seventy-two billion, eight hundred fifty-six million, ninety-two thousand, four hundred eighty".